U.S. patent number 9,427,603 [Application Number 14/569,133] was granted by the patent office on 2016-08-30 for process for reducing hair damage upon treatment of hair by heat.
This patent grant is currently assigned to The Procter & Gamble Company. The grantee listed for this patent is The Procter & Gamble Company. Invention is credited to Andreas Flohr, Christoph Schmitz, Juergen Seng, Sr..
United States Patent |
9,427,603 |
Seng, Sr. , et al. |
August 30, 2016 |
Process for reducing hair damage upon treatment of hair by heat
Abstract
A process for reducing hair damage upon treatment of hair by
heat comprising the steps of providing a hair care composition
comprising a heat-stable silicone material, applying said
composition onto hair, providing a heat generating hair care
appliance, and treating hair using said appliance; use and kit
thereof.
Inventors: |
Seng, Sr.; Juergen (Kelkheim,
DE), Schmitz; Christoph (Laggoens, DE),
Flohr; Andreas (Kronberg, DE) |
Applicant: |
Name |
City |
State |
Country |
Type |
The Procter & Gamble Company |
Cincinnati |
OH |
US |
|
|
Assignee: |
The Procter & Gamble
Company (Cincinnati, OH)
|
Family
ID: |
52689855 |
Appl.
No.: |
14/569,133 |
Filed: |
December 12, 2014 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20150083155 A1 |
Mar 26, 2015 |
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US 20160151271 A9 |
Jun 2, 2016 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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12865760 |
Jan 27, 2015 |
8940282 |
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PCT/US2009/033747 |
Feb 11, 2009 |
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Foreign Application Priority Data
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Feb 11, 2008 [EP] |
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08151246 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61K
8/891 (20130101); A61Q 5/12 (20130101); A61K
8/898 (20130101); A61Q 5/002 (20130101); A61K
2800/80 (20130101); A61K 2800/805 (20130101) |
Current International
Class: |
A61Q
5/12 (20060101); A61K 8/898 (20060101) |
References Cited
[Referenced By]
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WO |
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WO2007029590 |
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Mar 2007 |
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WO |
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Primary Examiner: Venkat; Jyothsna
Attorney, Agent or Firm: Fondriest; James T.
Claims
What is claimed is:
1. A process for reducing hair damage upon treatment of hair by
heat comprising the steps of: (1) providing a leave-in hair care
composition comprising a silicone material and a cosmetically
acceptable carrier, wherein the silicone material is a
polydimethylsiloxane and is stable at a temperature up to
300.degree. C.; (2) applying onto hair a sufficient amount of the
hair care composition for treating hair; (3) providing a heat
generating hair care appliance being a hot surface hair care
appliance, wherein the hot surface hair care appliance is a hair
dryer, a hot air hair styler, or a hair curler; (4) treating hair
at a temperature ranging from about 90.degree. C. to about
250.degree. C. using the heat generating hair care appliance for
from about 1 min to about 20 min for drying and/or styling hair;
wherein the polydimethylsiloxane (P) has aminoalkyl groups and has
an amine number of at least 0.1 meq/g of polydimethylsiloxane (P),
and comprises units of formula I
R.sup.1.sub.aR.sup.2.sub.bSiO.sub.(4-a-b)/2 (I), in which R.sup.1
is methyl, an --OR radical, or an --OH radical, R.sup.2 are
aminoalkyl radicals of formula II --R.sup.3--NR.sup.4R.sup.5 (II),
R.sup.3 is --(CH.sub.2).sub.3-- R.sup.4 is H, R.sup.5 is
--(CH.sub.2).sub.2--NH.sub.2--, a is 0, 1, 2 or 3, b is 0, 1, 2 or
3, and a+b on average is from 1.5 to 2.5, wherein not more than 9
mol % of the radical R.sup.1 is OH or OR.
2. The process according to claim 1, wherein the composition
further comprises a protonating agent.
3. The process according to claim 1, wherein the composition
further comprises at least one cosmetic hair treatment agent
selected from the group consisting of hairstyling polymers,
hair-conditioning agents, hair-cleaning agents, and mixtures
thereof.
4. The process according to claim 1, further comprising the step of
wetting hair with an aqueous composition before, during and/or
after applying the hair care composition.
Description
FIELD OF THE INVENTION
According to a first aspect, the present invention relates to a
process for reducing hair damage upon treatment of hair by heat
comprising the steps of providing a hair care composition
comprising a heat-stable silicone material, applying said
composition onto hair, providing a heat generating hair care
appliance, and treating hair using said appliance. According to
second and third aspects, the invention relates to the uses of said
composition and said heat-stable silicone material. According a
fourth aspect, the invention relates to a kit comprising said hair
care composition and said appliance. Said processes are useful for
treating hair, such as drying and/or styling hair, by heat while
protecting hair and/or reducing hair damage that may occur upon
treatment of hair by heat.
BACKGROUND OF THE INVENTION
Heat generating hair care appliances, such as hot air hair care
appliances and hot surface hair care appliances, are commonly used
for drying and/or styling hair. Particularly, hot air hair care
appliances are primarily used in order to dry hair. Particularly,
hot surface hair care appliances are primarily used in order to
style hair. Such appliances allow treating hair upon heat. The
temperature may be superior to 50.degree. C., or even 100.degree.
C.
However, hair are sensitive to temperature and treating hair using
heat generating hair care appliances may alter the structure of
hair fibers and, therefore, may damage hair. Particularly, repeated
treatments using a heat generating hair care appliance at regular
intervals increase the risk of damaging hair.
In order to prevent and/or reduce hair damage, the user may apply
hair care compositions. It is known a wide range of various hair
care compositions, e.g. shampoo, hair-conditioning compositions,
hairstyling compositions. However, even if these compositions may
reduce in some extent hair damage, these compositions are usually
not suitable for reducing hair damage induced upon treatment by
heat. In some cases, such compositions may even contribute to
damaging hair, when applying in conjunction with a treatment of
hair using a heat generating appliance, because they comprise
components degrading under high temperature.
There is a continuous need, therefore, for providing process for
reducing hair damage upon treatment of hair by heat.
SUMMARY OF THE INVENTION
According to a first aspect, the present invention relates to a
process for reducing hair damage upon treatment of hair by heat
comprising the steps of: providing a hair care composition
comprising a heat-stable silicone material and a cosmetically
acceptable carrier; applying onto hair a sufficient amount of hair
care composition for treating hair; providing a heat generating
hair care appliance; treating hair using the heat generating hair
care appliance for a sufficient amount of time.
According to a second aspect, the present invention relates to the
use of a hair care composition, according to the first aspect, for
protecting hair and reducing hair damage upon treatment of hair by
heat.
According to a third aspect, the present invention relates to the
use of a heat-stable silicone material, according to the first
aspect of the invention, for preparing a heat-styling hair care
composition.
According to a fourth aspect, the present invention relates to a
kit for reducing hair damage upon treatment of hair by heat
comprising; a hair care composition, according to the first aspect,
comprising a heat-stable silicone material and a cosmetically
acceptable carrier; a heat-generating hair care appliance,
preferably a hot air hair care appliance and/or a hot surface hair
care appliance.
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect, the present invention relates to a
process for reducing hair damage upon treatment of hair by heat
comprising the steps of: providing a hair care composition
comprising a heat-stable silicone material and a cosmetically
acceptable carrier; applying onto hair a sufficient amount of hair
care composition for treating hair; providing a heat generating
hair care appliance; treating hair using the heat generating hair
care appliance for a sufficient amount of time.
The inventors have surprisingly found that applying a hair care
composition comprising a heat-stable silicone material before
treating hair using a heat generating hair care appliance allows
protecting hair against any damage that may occur upon treatment by
heat. Indeed, heat generating hair care appliances, and
particularly hot surface hair care appliances, may generate
temperature above 50.degree. C. or even 100.degree. C. Such high
temperature may alter the structure of hair fibers and, therefore,
damage hair. Without wishing to be bound by theory, it is believed
that heat-stable silicone materials, and hair care compositions
comprising such materials, are suitable for protecting hair and/or
reducing hair damage upon treatment by heat because they do not
evaporate when subject to high temperature and they do not also
decompose and/or form by-products. It is believed, therefore, that
the heat-stable silicone material--particularly the
polydimethylsiloxane (P) described below--remains of hair fibers
after applying of the hair care composition and limits the impact
of the heat onto hair fibers.
The process, according to the present invention comprises the step
of providing a hair care composition comprising a heat-stable
silicone material and a cosmetically acceptable carrier.
As used herein, the expression "heat-stable silicone material"
means a silicone material which is stable even at high
temperatures. As used herein, the expression "high temperature"
means temperature up to 300.degree. C., preferably temperature up
to 280.degree. C., more preferably temperature up to 250.degree. C.
As used herein, the expression "stable" means that the silicone
material does not decompose and/or does not form by-products and/or
does not evaporate when heated up to high temperature.
Particularly, when a heat-stable silicone material is applied onto
a substrate, e.g. hair fibres, the expression "stable" means that
the silicone material remains on said substrate without
evaporating. Heat-stability of silicone material may be accessed
using the Thermogravimetric analysis, particularly using the
apparatus TG 209, manufactured from Netsch.
Preferably, the heat-silicone material is a heat-stable
polydimethylsiloxane.
More preferable, the heat-stable polysiloxane is a
polydimethylsiloxane (P) having aminoalkyl groups and having an
amine number of at least 0.1 meq/g of polydimethylsiloxane (P), and
comprising units of the formula I
R.sup.1.sub.aR.sup.2.sub.bSiO.sub.(4-a-b)/2 (I),
in which R.sup.1 are optionally halogen-substituted alkyl radicals
having 1-40 carbon atoms, or are --OR or --OH radicals;
R are optionally halogen-substituted alkyl radicals having 1-40
carbon atoms;
R.sup.2 are aminoalkyl radicals of the formula II
--R.sup.3--NR.sup.4R.sup.5 (II);
R.sup.3 are divalent hydrocarbon radicals having 1-40 carbon
atoms;
R.sup.4 are monovalent hydrocarbon radicals having 1-40 carbon
atoms or are H;
R.sup.5 is a radical of the formula III
--(R.sup.6--NR.sup.4).sub.xR.sup.4 (III);
R.sup.6 is a divalent radical of the formula IV
--(CR.sup.4R.sup.4--).sub.y (IV);
x is 0 or a value from 1 to 40; y is 1 or 2; a is 0, 1, 2 or 3; b
is 0, 1, 2 or 3; and, a+b on average is from 1.5 to 2.5;
not more than 9 mol % of the radical R.sup.1 being OH or OR.
The alkyl radicals R.sup.1 and R may be linear, cyclic, branched,
saturated or unsaturated. The alkyl radicals R.sup.1 and R
preferably have 1-18 carbon atoms, in particular 1-6 carbon atoms,
and the methyl radical or ethyl radical is particularly preferred.
Preferred halogen substituents are fluorine and chlorine.
Particularly preferred radicals R.sup.1 are the methyl radical,
methoxy radical, ethoxy radical or --OH.
The divalent hydrocarbon radicals R.sup.3 may be
halogen-substituted, linear, cyclic, branched, aromatic, saturated
or unsaturated. The radicals R.sup.3 preferably have 1 to 6 carbon
atoms, and alkylene radicals are particularly preferred, in
particular propylene. Preferred halogen substituents are fluorine
and chlorine.
The monovalent hydrocarbon radicals R.sup.4 may be
halogen-substituted, linear, cyclic, branched, aromatic, saturated
or unsaturated. The radicals R.sup.4 preferably have 1 to 6 carbon
atoms, and alkyl radicals are particularly preferred. Preferred
halogen substituents are fluorine and chlorine. Particularly
preferred substituents R.sup.4 are methyl, ethyl, cyclohexyl and
H.
In the polydimethylsiloxanes, b preferably has the value 0 or 1,
and a+b preferably has an average value of from 1.9 to 2.2. In the
polydimethylsiloxanes, x is preferably 0 or a value from 1 to 18,
most preferably from 1 to 6.
Particularly preferred radicals R.sup.2 are
--CH.sub.2N(R.sup.4).sub.2, --(CH.sub.2).sub.3N(R.sup.4).sub.2 and
--(CH.sub.2).sub.3N(R.sup.4)(CH.sub.2).sub.2N(R.sup.4).sub.2.
The polydimethylsiloxane (P) is composed of at least 3, in
particular at least 10, units of the general formula (I).
The ratio of a to b is chosen so that the polydimethylsiloxane (P)
has an amine number of at least 0.1 meq/g of polydimethylsiloxane
(P), preferably at least 0.6 meq/g of polydimethylsiloxane (P). The
amine number of the polydimethylsiloxane (P) is preferably not more
than 7 meq/g of polydimethylsiloxane (P).
The viscosity of the polydimethylsiloxane (P) is preferably from 1
to 100,000 mPas, in particular from 10 to 10,000 mPas, at
25.degree. C.
Said composition may comprise from 0.001% to 50%, preferably from
0.01% to 30%, more preferably from 0.1% to 20%, still more
preferably from 0.1% to 5%, polydimethylsiloxane (P) by total
weight of the hair treating composition.
The polydimethylsiloxanes (P) and emulsions or dispersions thereof
are described in US 2006/0041026 A1 which is hereby incorporated by
reference. An oil-in-water emulsion of polydimethylsiloxanes (P)
suitable for the invention is sold under the trademark Wacker.RTM.
HC 303 VP by Wacker-Chemie AG (Germany).
In a preferred embodiment, the composition is an emulsion and
contains a MQ silicone resin. The MQ silicone resin preferably
contains at least 80 mol %, preferably at least 95 mol %, of units
of the general formulae (V) and (VI): R.sup.7.sub.3SiO.sub.1/2 (V),
SiO.sub.4/2 (VI),
in which R.sup.7 are optionally halogen-substituted hydrocarbon
radicals having 1-40 carbon atoms or H, --OR or --OH radicals, and
the ratio of the units of the general formulae (V) and (VI) is from
0.5 to 2.0, preferably from 0.5 to 1.5, and not more than 3% by
weight, preferably not more than 2.5% by weight, of the radicals
R.sup.7 are --OR and --OH.
The remaining units of the MQ silicone resin are preferably units
of the general formulae (VII) and (VIII): R.sup.7.sub.2SiO.sub.2/2
(VII), R.sup.7SiO.sub.3/2 (VIII),
The monovalent hydrocarbon radicals R.sup.7 may be
halogen-substituted, linear, cyclic, branched, aromatic, saturated
or unsaturated. The radicals R.sup.7 preferably have 1 to 6 carbon
atoms, and alkyl radicals and phenyl radicals are particularly
preferred. Further halogen substituents are fluorine and chlorine.
Particularly preferred substituents R.sup.7 are methyl, ethyl,
phenyl and H. The emulsions preferably contain from 1 to 200 parts
by weight, particularly preferably from 5 to 100 parts by weight,
of MQ silicone resin.
The hair care composition may further comprise a protonating agent.
The protonating agent may be a monoprotic or polyprotic acid,
water-soluble or water-insoluble acid, and/or an organic or
inorganic acid. Preferably, the protonating agent is selected from
formic acid, acetic acid, sulfuric acid, hydrochloric acid, citric
acid or mixtures thereof. Preferably, the protonating agent is
added in an amount of from 0.05 to 2 mol of acidic proton per mole
of basic nitrogen atom of the radicals R.sup.2.
The above polydimethylsiloxane (P) in combination with the
protonating agent can advantageously be used for manufacturing a
cosmetic composition for treating human hair.
By treating hair with said polydimethylsiloxane (P) together with
the protonating agent the treated hair becomes water repellent.
This allows to use said polydimethylsiloxane (P) and the
protonating agent for reducing the drying time of human hair. This
also allows using said polydimethylsiloxane (P) and the protonating
agent, and hair care compositions comprising these components, for
reducing the drying time of human hair.
Providing a hair care composition allowing the reduction of the
drying time is particularly useful in processes according to the
present invention. Indeed, such composition allows the reduction of
the time needed when treating hair using the heat generating hair
care appliance and, therefore, it contributes further to the
protection of hair and/or reduction of hair damage upon treatment
of hair by heat.
The hair care composition also comprises a cosmetically acceptable
carrier. The cosmetically acceptable carrier may be any carrier
suitable for formulating the heat-stable silicone material into a
composition being suitable for application onto hair. The
cosmetically acceptable carrier may be selected from either an
aqueous medium or an aqueous-alcoholic medium. When the carrier is
an aqueous-alcoholic carrier, this carrier comprises water and an
alcohol. When the carrier is an aqueous carrier, this carrier
consists essentially of water and is substantially free of alcohol.
Said composition may comprise from 0.1% to 99%, preferably from 1%
to 99%, more preferably from 10% to 99%, still more preferably from
30% to 99%, water by weight of the total composition.
The hair care composition may be in the form of an emulsion, a
solution, a dispersion, or any other form suitable for application
onto hair. When being in the form of an emulsion, said emulsion may
be a water-in-oil emulsion, an oil-in-water emulsion, or a multiple
emulsion.
The hair care composition may be a leave-in composition or a
rinse-off composition.
The hair care composition may be selected from a shampoo; a
hair-conditioning composition; a hairstyling composition; or
combinations thereof. When being a hairstyling composition, said
composition may be a gel composition; a spraygel composition,
optionally dispensed using a mechanical spray device and/or at
least one propellant; a non-aerosol hairspray, optionally dispensed
using a suitable mechanically operated spraying device; a foamable
composition, optionally dispensed using devices for foaming; hair
wax composition; hair lotion composition; hair cream composition;
or combinations thereof.
The hair care composition may be applied on wet hair and/or on dry
hair.
The hair care composition may further comprise at least one
cosmetic hair treatment agent selected from hairstyling polymers,
hair-conditioning agents, hair-cleaning agents, or mixtures
thereof.
The hair care composition may comprise any suitable and
conventional hair styling polymers. Particularly, the hairstyling
polymer may be selected from nonionic hair styling polymer, anionic
hair styling polymer, zwitterionic and/or amphoretic hairstyling
polymer, cationic hair styling polymer, or mixtures thereof.
Suitable hairstyling polymers may be found in the CTFA
International Cosmetics Ingredient Dictionary and Handbook, "Hair
Fixatives", 12.sup.th edition (2008). Suitable hairstyling polymers
are, for example, those materials disclosed from page 12, line 5 to
page 19, line 1 of the European patent application 08151246.9 filed
on 11 Feb. 2008, which is incorporated herewith by reference.
The hair care composition may comprise from 0.01% to 10% by weight,
preferably from 0.1% to 8%, more preferably from 0.1% to 5%,
hairstyling polymer by total weight of the composition.
Nonionic hairstyling polymers may be natural or synthetic polymers.
Suitable nonionic hair styling polymers may be polymers obtained
from polymerization of at least one type of monomers selected from
vinylpyrrolidone; vinylcaprolactam; vinyl esters; vinyl alcohol;
vinyl acetate; (meth)acrylamide, and/or its derivatives;
(meth)acrylic acid, its salts, and/or its derivatives; propylene
and/or ethylene glycol acid; crotonic acid; or mixtures thereof.
For example, such polymers are available under the tradenames
Luviskol.RTM. or Luviset Clear.RTM..
Suitable anionic hairstyling polymers may be selected from acrylic
acid/alkyl acrylate/N-alkylacrylamide terpolymer; vinyl
acetate/crotonic acid copolymer; C1-C5-alkyl acrylate/(meth)acrylic
acid copolymer; sodium polystyrenesulfonate; vinyl acetate/crotonic
acid/vinyl alkanoate copolymer; vinyl acetate/crotonic acid/vinyl
neodecanoate copolymer; aminomethylpropanol acrylate copolymer;
vinylpyrrolidone/(meth)acrylic copolymer; methyl vinyl ether/maleic
monoalkyl esters copolymer; aminomethylpropanol salts of allyl
methacrylate/(meth)acrylate copolymer; ethyl acrylate/methacrylic
acid copolymer; vinyl acetate/mono-n-butyl maleate/isobornyl
acrylate copolymer; octylacrylamid/(meth)acrylic acid copolymer;
polyesters of diglycol, cyclohexanedimethanol, isophthalic acid and
sulfoisophthalic acid; or mixtures thereof.
Suitable zwitterionic or amphoteric hairstyling polymers may be
selected from alkylacrylamide/alkylaminoalkyl
methacrylate/(meth)acrylic acid copolymers; copolymers which are
formed from at least one first monomer type which has quaternary
amine groups, and at least one second monomer type which has acid
groups; copolymers of fatty alcohol acrylates, of alkylamine oxide
methacrylate and at least one monomer chosen from acrylic acid and
methacrylic acid; methacryloylethylbetaine/methacrylic acid and/or
esters copolymers; polyquaternium-47; polyquaternium-43; oligomers
or polymers, preparable from quaternary croton betaines or
quaternary croton betaine esters; or mixtures thereof.
Suitable cationic hairstyling polymers may be selected from
homopolymers or copolymers, where the quaternary nitrogen groups
are present either in the polymer chain or as substituent on one or
more of the monomers. The monomers containing ammonium groups may
be copolymerized with noncationic monomers. Suitable cationic
monomers may be unsaturated, free-radically polymerizable compounds
which carry at least one cationic group, in particular
ammonium-substituted vinyl monomers, such as, for example,
trialkylmeth-acryloxyalkylammonium, trialkylacryloxyalkylammonium,
dialkyldiallylammonium and quaternary vinylammonium monomers with
cyclic, cationic nitrogen-containing groups, such as pyridinium,
imidazolium or quaternary pyrrolidones, e.g. alkylvinylimidazolium,
alkylvinyl-pyridinium, or alkylvinylpyrrolidone salts. The alkyl
groups of these monomers are preferably lower alkyl groups, such
as, for example, C1- to C7-alkyl groups, particularly preferably
C1- to C3-alkyl groups. Suitable noncationic monomers may be
selected from (meth)acrylamide, derivatives thereof; acrylate, its
derivative thereof; vinylcaprolactone, vinylcaprolactam,
vinylpyrrolidone, vinyl esters, vinyl alcohol, propylene glycol or
ethylene glycol. For example, suitable cationic hairstyling
polymers are available under the tradenames Gafquat.RTM. 755 N;
Gafquat.RTM. 734; Gafquat.RTM. HS 100; Luviquat.RTM. HM 550;
Merquat.RTM. Plus 3300; Gaffix.RTM. VC 713; Aquaflex.RTM. SF
40.
Cationic hairstyling polymers may also be derived from natural
polymers, preferably natural polymers selected from cationic
derivatives polysaccharides such as cellulose, starch and/or guar;
chitosan, its salts, and/or its derivatives; or mixtures thereof.
For example, suitable conventional polymers are polyquaternium-4;
polyquaternium-10; polyquaternium-24; guar hydroxypropyltrimonium
chloride; chitosonium pyrrolidonecarboxylate.
The hair care composition may further comprise any suitable and
conventional hair-conditioning agents. The term "hair conditioning
agent" means herewith any cosmetically acceptable compound having a
cosmetic effect on hair, such as providing gloss to hair, making
hair more manageable, improving hair touch, improving combability
and/or giving hair more volume. Suitable hair-conditioning agents
may be found in the CTFA International Cosmetics Ingredient
Dictionary and Handbook, "Hair conditioning agents", 12.sup.th
edition (2008). Hair conditioning agent may be selected from
cationic surfactant, nonionic surfactant, silicone-conditioning
agent, organic oily conditioning agent, or mixtures thereof.
Suitable hair-conditioning agents are, for example, those materials
disclosed from page 19, line 3 to page 27, line 33 of the European
patent application 08151246.9 filed on 11 Feb. 2008, which is
incorporated herewith by reference.
Suitable cationic surfactants contain preferably amino or
quaternary ammonium moieties. For example, cationic surfactant may
be surfactants of formula [NR4,R5,R6,R7].sup.+.X.sup.-
wherein R4 to R7 are independently an aliphatic group of from 1 to
22 carbon atoms; an aromatic, alkoxy, polyoxyalkylene, alkylamido,
hydroxyalkyl, aryl or alkylaryl group having from 1 to 22 carbon
atoms; and X.sup.- is a salt-forming anion. Suitable cationic
surfactants may be selected from cetyl trimethyl ammonium salts;
behenyl trimethyl ammonium salts; dimethyl ditallow ammonium salts;
stearyl amidopropyl dimethylamine; (di)esterquats; quaternium 8,
14, 15, 18, 22, 24, 26, 27, 30, 33, 37, 53, 60, 61, 72, 78, 80, 81,
82, 83, 84, and/or 91; or mixtures thereof.
Suitable nonionic surfactants may be surfactants having a HLB of
less than 8. Suitable nonionic surfactants may be selected from
glyceryl esters; sugar esters; alkylpolyglucoside ethers; oleyl- or
isostearylpolyglucoside; polyoxyethylene (20) sorbitan
monostearate; or mixtures thereof.
Suitable silicone conditioning agents may be volatile or
nonvolatile, and/or soluble or insoluble silicones. For example,
suitable silicone conditioning agents are available under the
tradenames SF 1075 methyl phenyl fluid (Electric company); DC200
Fluid, DC244, DC245, DC345, DC556 Cosmetic Grade Fluid, DC1248 (Dow
Corning).
Suitable organic oily conditioning agents may be nonvolatile, water
insoluble, organic, oil or fat. Organic oily conditioning agents
may be selected from hydrocarbon oils and fatty esters.
Suitable fatty alcohols may be nonvolatile low melting point fatty
alcohol.
A variety of additional optional ingredients may be incorporated
into the composition of the present invention. Non-limiting
examples of these additional ingredients may be selected from
preservatives; antioxidants; sequestering agents; solvents;
fragrances & perfumes; fillers; screening agents; odor
absorbers; coloring materials; lipid vesicles; detersive
surfactants; thickening agents and suspending agents; viscosity
modifiers; pearlescent aids; UV-filters and sunscreens; agents for
combating free radicals; polyvinyl alcohol; pH adjusting agents;
salts; coloring agents; polymer plasticizing agents; direct dyes;
or mixtures thereof.
The hair care composition may further comprise at least one direct
hair dyes. Said composition may comprise from 0.01% to 15%,
preferably from 0.1% to 10%, more preferably from 0.5% to 8%,
direct hair dyes by weight of the total composition.
The hair care composition may further comprise at least one
viscosity-modifying substance. Said composition may comprise from
0.01% to 20%, preferably from 0.05% to 10%, more preferably from
0.1% to 5%, viscosity-modifying substance by weight of the total
composition.
The hair care composition may further comprise at least one
emulsifier and/or surfactant not being a hair conditioning agent.
Said emulsifier and/or surfactant may be selected from nonionic
surfactants; anionic surfactants; amphoretic surfactants; or
mixtures thereof. Said composition may comprise from 0.01% to 50%,
preferably from 0.05% to 20%, more preferably from 0.1% to 15%,
emulsifier and/or surfactant by weight of the total
composition.
The hair care composition may further comprise at least one
pigment. The pigment may be selected from natural pigments;
synthetic pigments; or mixture thereof. The pigments may be
selected from organic pigment, inorganic pigment; or mixtures
thereof. The pigments may be selected from colored pigments;
pearlescent pigments; or mixtures thereof. Said composition may
comprise from 0.01% to 25%, preferably from 5% to 15%, pigment
present in the product mass in undissolved form by weight of the
total composition.
The hair care composition may further comprise at least one
particulate substance. Particulate substance may be selected from
silica; silicates; aluminates; clay earths; mica; insoluble salts,
particularly insoluble inorganic metal salts; metal oxides;
minerals; insoluble polymer particles; or mixtures thereof. Said
hair care composition may comprise from 0.01% to 10%, preferably
from 0.05% to 5%, of at least one particulate substance by weight
of the total composition.
The hair care composition may further comprise at least one
photoprotective substance. Said composition may comprise from 0.01%
to 10%, preferably from 0.1% to 5%, more preferably from 0.2% to
2%, photoprotective substance by weight of the total
composition.
The hair care composition may further comprise at least one
preservative. Said composition may comprise from 0.01% to 5% by
weight, more preferably from 0.05% to 1%, of at least one
preservative by weight of the total composition.
The hair care composition may have a viscosity at 25.degree. C.
from 0.1 mPas to 1,000,000 mPas, preferably from 1 mPas to 80,000
mPas, more preferably from 5 mPas to 3,500 mPas. The viscosity may
be measured--if not otherwise defined--by HAAKE Rotation Viscometer
VT 550 with cooling/heating vessel and sensor systems according to
DIN 53019 (MV-DIN, SV-DIN), shear rate is 12.9 s.sup.-1.
The hair care composition may have a pH value from 2.0 to 12.0,
preferably from 3.0 to 9.0, more preferably from 4.5 to 7.5. In
order to achieve a specific pH, said composition may further
comprise an alkalizing agent and/or an agent for adjusting the pH
value.
In a preferred embodiment, the process comprises the steps of
providing and applying a hair care composition comprising at least
one heat stable silicone material, at least one volatile component
above 100.degree. C. and a cosmetically acceptable carrier.
Preferably, said composition consists essentially of at least one
heat stable silicone material, at least one volatile component
above 100.degree. C. and a cosmetically acceptable carrier. More
preferably, said composition is substantially free of heat-unstable
component.
As used herein "volatile above 100.degree. C." means that the
component evaporates above 100.degree. C. and that, when applied
onto a substrate such as hair fibers, the component leaves no
residue and/or by-products onto said substrate. Common volatile
components above 100.degree. C. are water and alcohols.
As used herein, the expression "heat-unstable" means that a
component does not evaporate fully when subject to high
temperatures and, when applied onto a substrate such as hair,
leaves by-products that may alter the structure of hair fibers
and/or induce hair damage when heated up at high temperatures.
The process, according to the present invention, also comprises the
step of applying onto hair a sufficient amount of hair care
composition for treating hair. As used herein, the expression
"sufficient amount of hair care composition for treating hair"
means preferably the application from 0.01 g to 5 g of hair care
composition for 1 g of hair. The composition may be applied onto
hair by dispending it directly onto hair and then rubbing hair to
distribute this composition evenly onto hair. Alternatively, the
composition may be dispensed into the hand palm and/or onto any
suitable substrate and then rubbing hair with the hand and/or said
substrate to apply and distribute this composition evenly onto
hair.
The process, according to the present invention, also comprises the
steps of providing a heat generating hair care appliance and then
treating hair using this appliance for a sufficient amount of time.
As used herein, the expression "sufficient amount of time" means
preferably from 1 min to 2 h, more preferably from 1 min to 1 h,
still more preferably from 1 min to 20 min
Heat generating hair care appliances fall into two major
categories, i.e. appliances to be used typically on wet hair and
appliances to be used typically on dry hair.
Appliances to be used preferably on wet hair are referred herein as
to "hot air hair care appliances". For example, hot air hair care
appliances may be hair dryers and/or hot air hair stylers. A hair
dryer, for example, directs hot air towards the hair, as to dry it.
The air is typically directed through appropriate orifices and
accelerated by a fan. The hair may be heated by a resistive heater.
Such hair dryers may also take the form of drying hoods, where a
major portion of the head is covered by some form of hood.
Hairdryer distances are typically down to 10 cm. Hot air stylers
direct hot air through some sort of attachment for combing or
otherwise treating the hair. A hot air hair styler is typically
used such that the respective appliance touches the hair and hence
the styler itself is used in the vicinity of the hair (for example
at a distance of 5 or 10 or 20 centimeters). A conventional hot air
dryer is used in a somewhat larger distance to the hair (for
example at a distance of 20 or 30 or 40 centimeters) and often is
used with the aide of a comb or a brush. The devices of the first
group deliver hot air at a temperature from 50 to about 100.degree.
C. Some devices may deliver hot air temperatures up to 130.degree.
C., but no common device produces air hotter than 150.degree.
C.
Appliances to be used typically on dry hair are referred herein as
to "hot surface hair care appliances". For examples, hot surface
hair care appliances may be hair curlers and hair straighteners.
They also typically rely on resistive heating, but heat is not
transported through hot air, but by direct contact with the hair.
The transfer is often made by bringing the hair in contact with
some metal or ceramic surface of the appliance. These devices are
not or at least not primarily used to dry the hair. Rather are they
used to change the hair style, typically either to create curls or
to straighten hair. The surfaces meant for hair contact of these
devices typically reach temperatures from 130.degree. C. to
250.degree. C. Most devices have hair contact surfaces with
temperatures from 200.degree. C. to 230.degree. C.
U.S. Pat. No. 5,612,849 and U.S. Pat. No. 6,191,930 disclose a heat
generating hair care appliance in the form of a hot air hair care
appliance. The respective devices are typically referred to as hair
dryers or blow dryers. US D383245 discloses another heat generating
hair care appliance in the form of a hot air hair care appliance.
The respective devices are typically referred to as hot air stylers
or hair stylers. US 2008/0196739 discloses a heat generating hair
care appliance in the form of a hot surface hair care appliance.
The respective device is typically referred to as a hair
straightener.
In a preferred embodiment, the process comprises the steps of
providing a heat generating hair care appliance being a hot air
hair care appliance, and then treating hair at a temperature
ranging from 20.degree. C. to 150.degree. C. using said appliance
for a sufficient amount of time for drying and/or styling hair. The
hot air hair care appliance is preferably selected from hair dryer
and/or hot air hair styler. When said appliance is a hair dryer,
hair are preferably treated at a temperature ranging from
20.degree. C. to 110.degree. C. When said appliance is a hot air
hair styler, hair are preferably treated at a temperature ranging
from 50.degree. C. to 150.degree. C.
In another preferred embodiment, the process comprises the steps of
providing a heat generating hair care appliance being a hot surface
hair care appliance, and then treating hair at a temperature
ranging from 90.degree. C. to 250.degree. C. using said appliance
for a sufficient amount of time for drying and/or styling hair. The
hot surface hair care appliance is preferably selected from hair
curlers and hair straigtheners. When said appliance is a hair
curler, hair are preferably treated at a temperature ranging from
90.degree. C. to 200.degree. C. When said appliance is a hair
straigthener, hair are preferably treated at a temperature ranging
from 90.degree. C. to 250.degree. C.
In an alternative embodiment, the process comprises the steps of
providing a heat generating at least two hair care appliances being
a hot air hair care appliance and a hot surface hair care
appliance, and then treating successively hair using the hot air
hair care appliance and then the hot surface hair care
appliance.
The hair care composition is preferably applied onto hair before
treating hair using said appliance. This composition is applied
onto hair preferably from 1 min to 2 h, more preferably from 1 min
to 1 h, still more preferably from 1 min to 20 min, before treating
hair using said appliance.
The process, according to the present invention, may further
comprise the step of wetting hair before, during and/or after
applying the hair care composition onto hair. This step may be
performed using an aqueous composition and/or water.
The process, according to the present invention, may also further
comprise the step of rinsing off the hair care composition
comprising the heat-stable silicone material. It may be used water
and/or any suitable rinsing composition. Rinsing-off the hair care
composition is preferred when said composition is a shampoo and/or
a rinse-off hair-conditioning composition. This step of rinsing off
the hair care composition is preferably performed from 30 sec to 20
min, more preferably from 30 sec to 5 min after applying the hair
care composition. This step of rinsing off the hair care
composition is also preferably performed before treating hair using
the heat generating hair care appliance.
The process, according to the present invention, may also further
comprise the step of drying hair by toweling hair and/or by
pressing hair with hands. This step may be useful to remove the
excess of water. The step is preferably conducted after applying
the hair care composition onto hair and before treating hair using
a heat generating hair care appliance.
The process, according to the present invention, may also further
comprise the step of combing and/or brushing hair. This step may be
performed before and/or after treating hair using a heat generating
hair care appliance.
In a preferred embodiment, the present invention relates to a
process for reducing hair damage upon treatment of hair by heat
comprising the steps of: providing a hair care composition
comprising a heat-stable polydimethylsiloxane (P); applying from
0.01 g to 5 g/g hair of said composition onto hair; optionally,
wetting hair with an aqueous composition before, during and/or
after applying said hair care composition onto hair; optionally,
rinsing off said hair care composition; optionally drying hair by
toweling and/or pressing hair with hands in order to remove the
excess of water; providing two heat generating hair care appliances
being a hot air hair care appliance and a hot surface hair care
appliance; treating hair using the hot air hair care appliance from
1 min to 20 min for substantially drying hair; then treating hair
using the hot surface hair care appliance from 1 min to 20 min for
styling hair; optionally, combing and/or brushing hair before,
during and/or after treating hair with the heat generating hair
care appliances.
According to a second aspect, the present invention relates to the
use of a hair care composition, as defined above, for protecting
hair and reducing hair damage upon treatment of hair by heat. In a
preferred embodiment, the present invention relates to the use of
said hair care composition for protecting hair and reducing hair
damage upon treatment of hair by hot air hair care surface. In
another embodiment, the present invention relates to the use of
said hair care composition for protecting hair and reducing hair
damage upon treatment of hair by hot surface hair care surface.
It is indeed particularly advantageous using a hair care
composition comprising a heat-stable silicone material--e.g. a
heat-stable polydimethylsiloxane such as polydimethylsiloxane (P)
of the type present in the material Wacker HC 303--in order to
protect hair against hair treatments by heat and in order to
reduce, or even prevent, hair damages induced by hair treatments by
heat. Heat-stable silicone materials are useful for protecting hair
and/or reducing hair damage upon treatment of hair by heat as it is
believed that these materials--particularly polydimethylsiloxane
(P) described below--remain of hair fibers after applying of the
hair care composition incorporating them and limit the impact of
the heat onto hair fibers.
According to a third aspect, the present invention relates to the
use of a heat-stable silicone material, as defined above, for
preparing a heat-stable hair care composition. As used herein, the
expression "heat-stable hair care composition" means that the hair
care composition comprises at least one component being heat
stable, i.e. at least one component which does not decompose and/or
does not form by-products and/or doe not evaporate when heated up
to high temperatures, typically up to 300.degree. C.
In contrast, the heat-stable hair care composition may comprise
further components not being heat stable. Typically, said
composition may comprise components that would evaporate when
subject to high temperatures, preferably when subjected to a
temperature of 100.degree. C. or above. One common component
evaporating when subjected to a temperature of 100.degree. C. or
above is water.
According to a fourth aspect, the present invention relates a kit
for reducing hair damage upon treatment of hair by heat comprising:
a hair care composition--according to the first aspect of the
invention--comprising a heat-stable silicone material and a
cosmetically acceptable carrier; a heat-generating hair care
appliance--according to the first aspect of the invention--,
preferably a hot air hair care appliance and/or a hot surface hair
care appliance.
The following examples further describe and demonstrate the
preferred embodiments within the scope of the present invention.
The examples are given solely for the purpose of illustration, and
are not to be construed as limitations of the present invention
since many variations thereof are possible without departing from
its scope.
All weights provided in these examples are weights of the
commercially available materials, including active(s) and/or
solvent and/or by-products.
Evaluation of the function stability of the silicone material over
the whole range of styling up to 300.degree. C.
The thermogravimetric analysis--designated thereafter as "TGA"--was
conducted using the device TG 209 manufactured by Netsch.
The composition to be tested comprised 20% Wacker HC 303 material
(emulsion comprising polydimethylsiloxane (P)) and water (qsp).
Specifically, the composition comprised 5% (active)
polydimethylsiloxane (P).
A sample of the composition to be tested was loaded onto the
apparatus.
The sample was evaporated with a thermo balance in an
Al.sub.2O.sub.3 melting point in the temperature range from
20.degree. C. to 300.degree. C. with a heating rate of 20K/min
including two isothermal steps at 250.degree. C. and 300.degree. C.
each for 10 min.
The residues in the temperature range from 100.degree. C. to
300.degree. C. in Thermogravimetric analysis is shown in the table
below.
TABLE-US-00001 Residues in percentage 100.degree. C. 150.degree. C.
170.degree. C. 200.degree. C. 250.degree. C. 300.degree. C. Sample
57 6 5 5 5 5
The above data shows that 94% of the volatile substances, mainly
water, in the composition tested were already evaporated at
150.degree. C. and a stabile mass of 5% was left in the following
temperature steps. These data demonstrated that the remaining
substance after heating the sample up to 300.degree. C. is
polydimethylsiloxane (P) of Wacker HC303, and that said
polymethylsiloxane is stable at high temperature, i.e. does not
decompose and/or does not form by-products and/or does not
evaporate when heated up to high temperature.
Such data demonstrate the suitability of application of
polydimethylsiloxane (P) on hair before treatment of hair by heat,
because of its stability at high temperature.
Compositions Suitable for Use in the Processes According to the
Present Invention
All compositions exemplified below comprise amino-functional
organopolysiloxanes prepared as follows:
The amino-functional organopolysiloxanes used are as follows: Amine
Oil 1: Amine Oil 1 has a viscosity of about 1000 mm.sup.2/s at
25.degree. C., the functional radicals are
--CH.sub.2).sub.3NH(CH.sub.2).sub.2NH.sub.2 and has an amine number
of 0.6 meq/g of organopolysiloxane. In addition, the
organopolysiloxane contains about 0.75 mol % of reactive OMe/OH
radicals as terminal groups. Amine Oil 2: Amine Oil 2 has a
viscosity of about 1000 mm.sup.2/s at 25.degree. C., the functional
radicals are --CH.sub.2).sub.3NH(CH.sub.2).sub.2NH.sub.2 and has an
amine number of 0.6 meq/g of organopolysiloxane. The terminal
groups in this case are Me.sub.3SiO radicals. Amine Oil 3: Amine
oil 3 has a viscosity of about 230 mm.sup.2/s at 25.degree. C., the
functional radicals are
--(CH.sub.2).sub.3NH(CH.sub.2).sub.2NH.sub.2, and an amine number
of 2.6 meq/g of organopolysiloxane. The terminal groups are
likewise Me.sub.3SiO radicals. Said amino-functional
organopolysiloxanes are formulated as emulsions as follows:
Emulsion A: 16.g of Amine Oil 1 are added to 6 g of water, 6 g of
ethylene glycol monobutyl ether and 0.17 g of acetic acid at room
temperature while stirring, and the remaining water to a total
weight of 100 g is then also incorporated. A milky opaque emulsion
is obtained. The emulsion is added at room temperature as last
ingredient to the active solution/dispersion of the following
examples. Emulsion B: 16.g of a mixture of 11.1 g of Amine Oil 2
and 4.9 g of MQ resin are added to 6 g of water, 6 g of ethylene
glycol monobutyl ether and 0.17 g of acetic acid at room
temperature while stirring, and the remaining water to a total
weight of 100 g is then also incorporated. A milky opaque emulsion
is obtained. The emulsion is added at room temperature as last
ingredient to the active solution/dispersion of the following
examples. Emulsion C: 16.g of a mixture of 11.1 g of Amine Oil 3
and 4.9 g of MQ resin are added to 6 g of water and 0.17 g of
acetic acid at room temperature while stirring, and the remaining
water to a total weight of 100 g is then also incorporated. A milky
opaque emulsion is obtained. The emulsion is added at room
temperature as last ingredient to the active solution/dispersion of
the following examples.
The hair care compositions described hereafter and comprising
either emulsion A, emulsion B or emulsion C, are prepared using
conventional mixing methods. These formulations are suitable for
use in the processes according to the present invention.
Liquid gel comprising 2.00 g Emulsion A; 1.00 g Luviset.RTM. Clear,
1.50 g Surfactant 193, 0.30 g Carbomer, 0.30 g AMP 95%, 0.20 g
Emulgin L, 0.15 g perfume, 0.40 g Natrosol.RTM. G, 16.50 g Ethanol,
qsp 100.00 g water with water.
Rapid Drying Gel comprising 2.90 g Emulsion B, 1.00 g Luviset.RTM.
Clear, 1.80 g Polyvinylpyrrolidone K 90; 1.00 g Direct dye; 1.50 g
Surfactant 193; 1.00 g Synthalen.RTM. W 2000; 0.30 g AMP 95%; 0.30
g PEG-25 PABA (Uvinul.RTM. P 25); 0.15 g Panthenol; 0.30 g Perfume;
34.20 g Ethanol; 0.10 g Keratin hydrolysate; qsp 100.00 g with
water.
Pump-setting foam comprising 1.20 g Emulsion C, 1.80 g Luviset.RTM.
Clear, 1.90 g Direct dye, 0.40 g Cocamidopropyl Hydroxysultaine,
0.10 g Rosemary leaf extract (Extrapon.RTM. Rosemary), 8.90 g
ethanol, 0.10 g Extrapon.RTM. seven herbs-extract, 0.10 g Panthenyl
ethyl ether, 0.15 g Perfume, qsp 100.00 g with water. The
composition is packaged in a packaging with mechanically operated
pump foaming device.
Aerosol-setting foam-extra strong hold comprising 1.20 g Emulsion
A, 2.10 g Luviset.RTM. Clear, 0.60 g Vinyl acetate/crotonic acid
copolymer, 0.50 g Polyquaternium-7, 4.00 g Butane, 4.00 g Propane,
8.90 g Ethanol 510, 0.40 g PEG-25 PABA, 0.20 g Panthenol, 0.20 g
Perfume, 0.20 g Laureth-4, 0.07 g C9-C11 Pareth-8, qsp 10.00 g with
water. The composition is bottled in an aerosol can with foaming
head.
Setting spray comprising 2.20 g Emulsion B, 1.00 g Luviset.RTM.
Clear, 0.65 g Octylacrylamide/Acrylates/Butylaminoethylmethacrylate
Copolymer (Amphomer.RTM.), 0.20 g Celquat.RTM. L200, 28.5 g
Ethanol, 0.60 g Aminomethylpropanol 95%, 0.25 g Perfume, 0.20 g
Cetyltrimethylammonium chloride, qsp 60.00 g water. The composition
is bottled in a packaging with pump spray device.
Rinse out Conditioner comprising 3.00 g Emulsion A, 1.00 g
cetyltrimethyl ammonium chloride, 1.00 g polymethylphenyl siloxane,
0.40 g phenoxy ethanol, 0.20 g PHB-methylester, 1.00 g Dow Corning
949 Cationic Emulsion.RTM., 5.00 g isododecane, 0.40 g perfume oil,
qsp 100.00 g Water.
Leave in Conditioner comprising 1.80 g Emulsion C, 0.10 g vitamine
E-acetate, 0.50 g polymethylphenyl siloxane, 10.00 g propylene
glycol, 0.50 g behenyl trimethylammonium chloride, 0.05 g sodium
chloride, 0.30 g d-panthenol, 0.30 g PHB-propylester, 2.00 g
isododecane, 0.20 g perfume oil, qsp 100.00 g water.
Shampoo comprising 0.20 g Jaguar C-162, 40.00 g sodium laureth
sulfate (LES 28%), 5.00 g Cocamidopropyl betaine, 2.00 g Dow
Corning 200 Fluid/350 CS, 0.15 g Perfume, 6.00 g Emulsion C, qsp
100.00 g Water
The tradenames/raw materials used in the examples are Abilquat.RTM.
3270 (Quaternium-80, 50% in propylene glycol) from Goldschmidt;
Aculyn.RTM. 48 (PEG-150/stearyl alcohol/SMDI copolymer, 19% in
water) from Rohm and Haas; AMP 95% (aminomethylpropanol, 95%
aqueous solution); Amphomer.RTM.
(octylacrylamide/acrylates/butylaminoethylmethacrylate copolymer);
Aristoflex.RTM. AVC (Ammonium Acryloyldimethyltaurate/VP
copolymer); Aquaflex.RTM. FX-64
(isobutylene/ethylmaleimide/hydroxyethylmaleimide copolymer, 40%
strength in water/ethanol) from ISP; Aquaflex.RTM. SF 40 (VP/vinyl
caprolactam//DMAPA acrylates copolymer, 40% in ethanol) from ISP;
Advantage.RTM. S (vinyl caprolactam/VP/dimethylaminoethyl
methacrylate copolymer); Carbomer--Carbopol (acrylic acid
homopolmer); Celquat.RTM. L200 (copolymer of hydroxyethylcellulose
and diallyldimethylammonium chloride; Polyquaternium-4); GENAMIN
CTAC 50 (cetrimonium chloride; cetyltrimethylammonium chloride);
Copolymer 845 (VP/Ddimethylaminoethylmethacrylate copolymer, 20% in
water) from ISP; Dehydol.RTM. LS 4 (Lauryl alcohol tetraoxyethylen
ether); Dekaben.RTM. LMB (iodopropynyl butylcarbamate, 10% strength
in butylene glycol); Dekaben.RTM. LMP (Phenoxyethanol and
iodopropynyl butylcarbamate); Diaformer Z-711 (acrylates/lauryl
acrylate/stearyl acrylate/ethylamine oxide methacrylate copolymer,
40%) from Clariant; Dow Corning 1401 (High molecular weight
Dimethiconol, 13% in cyclomethicone); Eumulgin.RTM. L (PEG-1-PEG-9
lauryl glycol ether; Flexan.RTM. (Sodium polystyrenesulfonate);
GAFQUAT.RTM. 755 N (Polyquaternium-11); Jaguar C-17/162 (guar
hydroxylpropyltrimonium chloride) Laureth-4 (Lauryl alcohol
tetraoxyethylen ether); Luviset.RTM. Clear (Terpolymer of
vinylpyrrolidone, methacrylamide and vinylimidazole) from BASF;
Luviskol.RTM. VA 64 (vinylpyrrolidone/vinylacetate copolymer);
Luviskol.RTM. K 90 Powder (vinylpyrrolidone); Luvimer.RTM. 100 P
(t-butyl acrylate/ethyl acrylate/methacrylic acid copolymer);
Natrosol.RTM. G (hydroxyethylcellulose); Pemulen.RTM.
(acrylates/C10-30 alkyl acrylate crosspolymer); Structure.RTM. 3001
(acrylates/ceteth-20 itaconate copolymer, 30% strength in water)
from National Starch; Surfactant 193 (Ethoxylated
dimethylpolysiloxane) from Dow Corning); Synthalen.RTM. W 2000
(acrylates/palmeth-25 acrylate copolymer, 31% in water); Tego
Betain L 5045 (cocamidopropyl betaine).
Further compositions disclosed in the European patent application
08151246.9 filed on 11 Feb. 2008 referenced as examples 2 to 7, 9
to 17, 19 to 21, 23, 24, 26 to 35, 37, 39 to 45, and 46--which are
incorporated herewith by reference--are also suitable for use in
the processes according to the present invention.
Appliances suitable for use in the processes according to the
present invention Heat generating hair care appliances suitable for
use in the present processes are any conventional appliances
currently available onto the market.
The dimensions and values disclosed herein are not to be understood
as being strictly limited to the exact numerical values recited.
Instead, unless otherwise specified, each such dimension is
intended to mean both the recited value and a functionally
equivalent range surrounding that value. For example, a dimension
disclosed as "40 mm" is intended to mean "about 40 mm."
* * * * *